David Elieser Deutsch ( ; born 18 May 1953) is a British physicist at the University of Oxford.

He has also proposed the use of entangled states and Bell's theorem for quantum key distribution and is a proponent of the many-worlds interpretation of quantum mechanics. ==Early life and education== Deutsch was born into a Jewish family in Haifa in Israel on 18 May 1953, the son of Oskar and Tikva Deutsch.

He went on to Wolfson College, Oxford for his doctorate in theoretical physics and wrote his thesis on quantum field theory in curved space-time supervised by Dennis Sciama and Philip Candelas. ==Career and research== His work on quantum algorithms began with a 1985 paper, later expanded in 1992 along with Richard Jozsa to produce the Deutsch–Jozsa algorithm, one of the first examples of a quantum algorithm that is exponentially faster than any possible deterministic classical algorithm.

In his 1985 paper, he also suggests the use of entangled states and Bell's theorem for quantum key distribution.

He went on to Wolfson College, Oxford for his doctorate in theoretical physics and wrote his thesis on quantum field theory in curved space-time supervised by Dennis Sciama and Philip Candelas. ==Career and research== His work on quantum algorithms began with a 1985 paper, later expanded in 1992 along with Richard Jozsa to produce the Deutsch–Jozsa algorithm, one of the first examples of a quantum algorithm that is exponentially faster than any possible deterministic classical algorithm.

Together with Chiara Marletto, he published a paper in December 2014 entitled Constructor theory of information, that conjectures that information can be expressed solely in terms of which transformations of physical systems are possible and which are impossible. ===The Fabric of Reality=== In his 1997 book The Fabric of Reality, Deutsch details his "Theory of Everything".

He examines the nature of memes and how and why creativity evolved in humans. ===Awards and honours=== The Fabric of Reality was shortlisted for the Rhone-Poulenc science book award in 1998. Deutsch was awarded the Dirac Prize of the Institute of Physics in 1998, and the Edge of Computation Science Prize in 2005.

He examines the nature of memes and how and why creativity evolved in humans. ===Awards and honours=== The Fabric of Reality was shortlisted for the Rhone-Poulenc science book award in 1998. Deutsch was awarded the Dirac Prize of the Institute of Physics in 1998, and the Edge of Computation Science Prize in 2005.

Deutsch was elected a Fellow of the Royal Society (FRS) in 2008.

Norton (1992), Nicholas Maxwell (1993), Alan Cook (1994), Alistair Cameron Crombie (1994), Margaret Morrison (1995), Richard Feynman (1997), Robert Nozick (2001), and Tim Maudlin (2002). ===The Beginning of Infinity=== Deutsch's second book, The Beginning of Infinity: Explanations that Transform the World, was published on 31 March 2011.

He has set the agenda for worldwide research efforts in this new, interdisciplinary field, made progress in understanding its philosophical implications (via a variant of the many-universes interpretation) and made it comprehensible to the general public, notably in his book The Fabric of Reality." Since 2012, he has been working on constructor theory, an attempt at generalizing the quantum theory of computation to cover not just computation but all physical processes.

Together with Chiara Marletto, he published a paper in December 2014 entitled Constructor theory of information, that conjectures that information can be expressed solely in terms of which transformations of physical systems are possible and which are impossible. ===The Fabric of Reality=== In his 1997 book The Fabric of Reality, Deutsch details his "Theory of Everything".

In 2017, he received the Dirac Medal of the International Centre for Theoretical Physics (ICTP).

In 2018, he received the Micius Quantum Prize. ==Personal life== Deutsch is an atheist.

In 2020 he was awarded an Honorary Fellowship of the Cybernetics Society.

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